I think this is the very work that we must finish ____ her.
| 
   A.to help  | 
  
   B.help  | 
 
| 
   C.helping  | 
  
   D.helped  | 
 
The work he devoted his time to _____ worth praising.
| 
   A.was  | 
  
   B.be  | 
 
| 
   C.being  | 
  
   D.been  | 
 
The theory he sticks to ______ to be of no use in our studies.
| 
   A.proves  | 
  
   B.prove  | 
 
| 
   C.proving  | 
  
   D.be proved  | 
 
The man you referred to _____ just now.
| 
   A.comes  | 
  
   B.come  | 
 
| 
   C.coming  | 
  
   D.came  | 
 
How happy we are! The holiday we have been looking forward _______ at last.
| 
   A.to has come  | 
  
   B.to have come  | 
 
| 
   C.to having come  | 
  
   D.has come  | 
 
Who did the boss _____ his car this time?
| 
   A.make wash  | 
  
   B.make to wash  | 
 
| 
   C.make washing  | 
  
   D.making to wash  | 
 
